.bat{ width: 64px; height: 64px; background: black; transform: scale(4); position: relative; left: -128px; top: -128px; animation: bat 0.4s steps(1) infinite; } @keyframes bat { 0%{ transform: scale(4) rotate(0deg); } 50%{ transform: scale(4) rotate(10deg); } 100%{ transform: scale(4) rotate(0deg); } }